Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2021	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Business Acquisition [Line Items]
Gross Carrying Amount	$ 13,774	$ 13,774		$ 13,774
Accumulated Amortization	(5,425)	(5,425)		(3,634)
Impairment		(207)	$ 0
Net Carrying Amount	8,142	8,142		10,140
Oblong (formerly Glowpoint) | Affiliate network
Business Acquisition [Line Items]
Gross Carrying Amount	994	994		994
Accumulated Amortization	(787)	(787)		(735)
Impairment	(207)	(207)
Net Carrying Amount	0	0		259
Oblong Industries
Business Acquisition [Line Items]
Gross Carrying Amount	12,780	12,780		12,780
Accumulated Amortization	(4,638)	(4,638)		(2,899)
Impairment		0
Net Carrying Amount	8,142	8,142		9,881
Oblong Industries | Developed technology
Business Acquisition [Line Items]
Gross Carrying Amount	10,060	10,060		10,060
Accumulated Amortization	(4,032)	(4,032)		(2,520)
Impairment		0
Net Carrying Amount	6,028	$ 6,028		7,540
Estimated Useful Life		5 years
Oblong Industries | Trade names
Business Acquisition [Line Items]
Gross Carrying Amount	2,410	$ 2,410		2,410
Accumulated Amortization	(482)	(482)		(302)
Impairment		0
Net Carrying Amount	1,928	$ 1,928		2,108
Estimated Useful Life		10 years
Oblong Industries | Distributor relationships
Business Acquisition [Line Items]
Gross Carrying Amount	310	$ 310		310
Accumulated Amortization	(124)	(124)		(77)
Impairment		0
Net Carrying Amount	$ 186	$ 186		$ 233
Estimated Useful Life		5 years